Smartphone & Tablet Measurements
SoundCheck measures
Speaker characteristics including:
- 1/1, 1/3, 1/6, 1/12, and 1/24 octave analysis
- Frequency Response
- Directivity (including polar plots)
- Phase
- Polarity
- Sound Pressure Level
- Power rating tests
- Simulated free field measurements
- Thiele-Small parameters
- curve fitting to determine resonances
- arithmetic operations, curve smoothing, and statistical functions
- Time Frequency Analysis
- Rub & Buzz distortion and Perceptual Rub & Buzz distortion
- Loose Particles
- Frequency response
- Comparison to reference standard
Telephone Measurements including:
- TIA-810
- TIA-920
Microphone characteristics including:
- Frequency response
- Sensitivity
- Phase
- Self-noise and signal-to-noise
- IM Distortion
- Simulated free-field response
- Directional characteristics (polar plot)
- Impulse response
- Max SPL
SoundCheck is the ideal tool for R&D smartphone and tablet testing because it is able to test every aspect of the finished device, from the loudspeaker and microphones to industry-standard telephone tests. Features include:
- Unlimited test flexibility – although SoundCheck is pre-programmed with all common loudspeaker and microphone tests, it is so flexible that any test that you can conceive can be implemented. Simple point and click sequence development enables complex tests to be developed with no need for programming.
- Built in functionality within SoundCheck for signal path calibration, sampling rate differences, frequency shift and variable delay between output and input simplifies test set-up
- Pre-written TIA test sequences available for purchase
- Virtual instruments – a virtual real time analyzer, multimeter, signal generator, spectrum analyzer and oscilloscope offer the same functionality within the SoundCheck software as their conventional hardware counterparts.
- Advanced stimulus, analysis, post-processing and even statistical options allow you to not only make all the measurements you need but also calculate any parameters arising from these without leaving the system.
- Sophisticated report writing functionality enables comprehensive reports to be automatically generated, ensuring consistency and saving time.
- SoundCheck is simple to calibrate, and measures to all relevant industry standards
- MEMs interface for testing MEMS microphones available
Testing smartphones and tablets on the production line using SoundCheck is fast and simple, and minimizes product returns due to audio quality issues. SoundCheck is ideal for production line measurements of smartphones and tablets as it is fast, easy to operate and can test both the speakers and the microphones.
- Fast – a wide variety of test signals means that tests can be carried out faster than with other systems
- Sophisticated algorithms automatically take in to account differences in the input and output domains, different sample rates and phases, and variable delays between input and output.
- Accurate – unique test signals and measurement algorithms ensure that measurements are fast and accurate, even in noisy environments
- Results can be compared to pre-set limits or a reference standard
- Results can be presented as a simple audible or visual pass/fail indication, a detailed failure mode analysis, or automatically written to a database
- Simple, error-free operation – SoundCheck can be configured for one-click operation, and various levels of operator control prevent modification of the test sequence. A Chinese language option is also available
- SoundCheck fully integrates with automatic production lines and large-scale test systems. It interfaces with barcode systems, footswitches, and PLCs, and can be controlled via Test Stand or LabVIEW
- Listen also offers smartphone and tablet test chambers for use with SoundCheck
Examples: How do our Customers use SoundCheck for Measuring Smartphones and Tablets?
These are just some of the loudspeaker measurements that our customers are making:
- R&D testing of EVERY aspect of a smartphone including speaker, microphone, MP3 player, telephone to TIA standards and even headphone outlet
- Production line testing of smartphone speakers to ensure product quality
- Incoming QC of microspeakers and microphones before they are assembled into smartphones and tablets
More information? See the right sidebar to view detailed information about relevant test sequences, white papers, webinars and more about smartphone and tablet testing.